| 1 | P & C Oil Company | Leona, TX 75850 | Oil & Gas Operator | Mar 2024 |
| 2 | Palisades Operating Company | Midland, TX 79702 | Oil & Gas Operator | May 2024 |
| 3 | Palmer Petroleum Inc. | Shreveport, LA 71106 | Oil & Gas Operator | May 2024 |
| 4 | Par Minerals Corporation | Shreveport, LA 71101 | Oil & Gas Operator | May 2024 |
| 5 | Paradigm Exploration, L.P. | La Grange, TX 78945 | Oil Operator | Sep 2008 |
| 6 | Paragon Energy, Inc. | Dallas, TX 75244 | Oil & Gas Operator | May 2024 |
| 7 | Pardus Oil & Gas Operating, LP | Tulsa, OK 74114 | Oil & Gas Operator | Apr 2022 |
| 8 | Parker & Parsley Development L.P | Midland, TX 79702 | Oil & Gas Operator | Oct 2007 |
| 9 | Patriot Operating Company, Inc. | Houston, TX 77008 | Oil & Gas Operator | Sep 2003 |
| 10 | Peak Natural Gas Co., LLC | Dallas, TX 75225 | Oil & Gas Operator | Sep 2010 |
| 11 | Perry Producing Company, Inc. | Ackerly, TX 79713 | Oil & Gas Operator | May 2024 |
| 12 | Perryman Operating Company | Athens, TX 75751 | Oil & Gas Operator | May 2024 |
| 13 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | May 2024 |
| 14 | Petro-Smith Operating LLC | Houston, TX 77005 | Oil & Gas Operator | May 2024 |
| 15 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2024 |
| 16 | PG&E Resources Company | Houston, TX 77042 | Oil & Gas Operator | May 1995 |
| 17 | Phoenix Hydrocarbons Operating | Midland, TX 79702 | Oil & Gas Operator | May 2024 |
| 18 | Pintail Production Co., Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | May 2024 |
| 19 | Pioneer Natural Res. USA, Inc. | Irving, TX 75038 | Oil & Gas Operator | May 2024 |
| 20 | Pitco Investments, LTD. | Scottsdale, AZ 85261 | Oil & Gas Operator | Jan 2013 |
| 21 | Plains Marketing LP | Cushing, OK 74023 | Oil & Gas Operator | Dec 2022 |
| 22 | Pmo | Garland, TX 75040 | Oil & Gas Operator | Feb 2018 |
| 23 | Powerline Energy Corporation | Arlington, TX 76015 | Oil & Gas Operator | May 2024 |
| 24 | Premier Natural Resources II,LLC | Tulsa, OK 74105 | Oil & Gas Operator | Feb 2015 |
| 25 | Premium Exploration Company | Early, TX 76803 | Oil & Gas Operator | May 2024 |
| 26 | Preston Exploration LLC | Spring, TX 77387 | Oil & Gas Operator | Dec 2014 |
| 27 | Prime Operating Company | Houston, TX 77024 | Oil & Gas Operator | May 2024 |
| 28 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
| 29 | Proline Energy Resources Inc | Sugar Land, TX 77479 | Oil & Gas Operator | May 2024 |
| 30 | Prospctv Invstmnt & TRDG Co, LTD | Tulsa, OK 74170 | Oil & Gas Operator | May 2001 |
| 31 | Prosper Oil & Gas,Inc. | Dallas, TX 75201 | Oil & Gas Operator | May 2024 |
| 32 | Pyramid Oil Of America, Inc. | Oklahoma City, OK 73116 | Oil & Gas Operator | Feb 2024 |